| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Huinink, Hp Henk
Eindhoven University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Polymeric stabilization of salt hydrates for thermochemical energy storagecitations
- 2022Impact of polymeric stabilisers on the reaction kinetics of SrBr2citations
- 2021Encapsulation of salt hydrates by polymer coatings for low-temperature heat storage applicationscitations
- 2020Stabilization of K2CO3 in vermiculite for thermochemical energy storagecitations
- 2020Core-Shell Encapsulation of Salt Hydrates into Mesoporous Silica Shells for Thermochemical Energy Storagecitations
- 2017Transport of a water-soluble polymer during drying of a model porous mediacitations
- 2017Transport of a water-soluble polymer during drying of a model porous media
- 2013NMR study of the microstructures and water-polymer interactions in cross-linked polyurethane coatingscitations
- 2013NMR study of the microstructures and water-polymer interactions in cross-linked polyurethane coatingscitations
- 2013Water permeability of pigmented waterborne coatingscitations
- 2013Water permeability of pigmented waterborne coatingscitations
- 2012Quantitative water uptake study in thin nylon-6 films with NMR imagingcitations
- 2006Influence of catalyst type on the curing process and network structure of alkyd coatingscitations
- 2006Influence of catalyst type on the curing process and network structure of alkyd coatingscitations
- 2006Mass transfer and gelation in sandstone cores of a novel water shut off chemicalcitations
- 2001Pore size distribution from hydrogen and sodium NMR using the transverse relaxationcitations
- 2001Surface-induced transitions in thin films of asymmetric diblock copolymerscitations
Places of action
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article
Influence of catalyst type on the curing process and network structure of alkyd coatings
Abstract
Recent studies have shown that cobalt catalysts, used for curing of alkyd coatings, are potentially carcinogenic, and hence replacement by new environmental friendly catalysts is needed. The influence of different metal based catalysts on the oxidation process has been studied extensively in model systems, consisting of unsaturated oils. However, these results may not be representative for real coatings, since in these systems the oxygen diffusion is much lower than in model systems and therefore may have a large effect on the curing. In this paper, we will show how the curing of an alkyd coating depends on the type of catalyst (cobalt or manganese based). The curing process is studied using a high spatial resolution nuclear magnetic resonance (NMR) setup. The final network structure and cross-link density are found to be correlated with the catalyst used, i.e. a cobalt based catalyst and two manganese based catalysts. The difference in final network structure is investigated by NMR T2 relaxation analysis and the glass transition temperature Tg measured using a differential scanning calorimeter (DSC). In case of the cobalt based catalyst a cross-linking front was observed and a high cross-link density was found, compared to the manganese based catalysts, in which case no sharp cross-linking front was observed. To interpret the observed NMR profiles in more detail, simulations based on a reaction-diffusion model were performed. From the results of these simulations estimates were obtained for the reaction constants and the diffusion of oxygen for the different catalysts